Crosby L-180 User manual

Brand: Crosby

Model: L-180

Type: User manual

Crosby L-180 is a winchline tail chain designed for overhead lifting and dragging applications. This workhorse lifting device has a design factor of 3.5 to 1 and comes equipped with a hook that fits winchline diameters when hooked or connected back to the winchline. It can be used to pull or drag loads, or wrapped around the load and connected to the winchline for lifting. It provides the same load control advantages and limitations as a single leg wire rope sling basket or choker hitch.

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APPLICATIONS & WARNINGS

This application/warning information apply to Crosby products only.

LOAD SECUREMENT COMPONENTS

SECTION 13

Crosby® L-180 WINCHLINE TAIL CHAIN

WARNING & APPLICATION INSTRUCTIONS

L-180

WARNING

• Loads may disengage from winchline tail chain if

proper procedures are not followed.

• A falling load or disengaged winchline tail chain may

cause serious injury or death.

• Inspect winchline tail chain for damage before

each use.

• Wire rope should not be terminated to tail chain by

the use of a knot.

• Do not attach slings or other devices in hook for

overhead lifting – see operating practices.

• The winchline tail chain hook is designed to fit the

winchline diameter when hooked or connected back to

winchline (See Figure 1).

• When used to pull or drag a load, the winchline tail

chain may be wrapped around the load and the hook

connected to the winchline. Also, when used to pull or

drag a load over the tail board roller, the tail chain hook

may be attached directly to the load at a connection point

authorized by a competent rigger (See Figure 5). In either

case, a visual verification of proper hook engagement is

required during the entire operation.

• When used in overhead lifting applications, the winchline

tail chain may be wrapped around the load and the hook

connected to the winchline (See Figure 1). Used in this

manner, this connection provides the same load control

advantages and limitations as a single leg wire rope sling

basket or choker hitch. The winchline tail chain should

contain and support the load from the sides, above center

of gravity, so load remains under control.

Typical Termination Method & Efficiency

Termination Efficiency

S-409 Swage Button 80%

Important Safety Information –

Read & Follow

• Only winchline tail chains made from alloy chain,

Grade 80 or Grade 100, should be used for overhead

lifting applications.

• Working Load Limit (WLL) is the maximum load in pounds

which should ever be applied to winchline tail chain.

• The Working Load Limit or Design Factor may be affected

by wear, misuse, overloading, corrosion, deformation,

intentional alterations, sharp corner cutting action and other

use conditions.

• Never repair, alter, rework, or reshape a hook or chain by

welding, heating, burning or bending.

• Recommended for IPS or XIP (EIP), RRL, FC or IWRC

wire rope.

• Shock loading and extraordinary conditions must be taken

into account when selecting winchline tail chains.

CAUSE FOR REMOVAL FROM SERVICE

A winchline tail chain shall be removed from service if any of

the following are visible on chain or hook:

• Wear, nicks, cracks, breaks, gouges, stretch, bend, weld

splatter and discoloration from excessive temperature.

Minimum thickness on chain link shall not be below the

values listed on Table 1.

• Chain links and hook that do not hinge freely to adjacent links.

• Excessive pitting or corrosion on chain, hook or

termination fitting.

• Makeshift fasteners, hooks, or links formed from bolts,

rods, etc.

• Mechanical coupling links in the body of the chain.

• Other damage that would cause a doubt as to the strength

of the chain.

• Winchline tail chain should not be subjected to galvanizing

or any plating process. If it is suspected the chain has

been exposed to chemically active environment, remove

from service.

• Termination end attachments that are cracked, deformed,

or worn.

• For wire rope inspection procedures and removal from

service criteria refer to manufacturer’s recommendations.

OPERATING PRACTICES

• Know the winch lifting/pulling systems capacity rating.

• Know the applied load on tail chain. In dragging

applications, the applied load may be greater or less than

its weight due to friction.

• During lifting/dragging with or without the load, personnel

should be alert for possible snagging.

• WORKING LOAD LIMIT (WLL) is the maximum load in

pounds which should ever be applied to winchline tail

chain when the chain is new or in "as-new” condition, and

when the load is uniformly applied in direct tension to a

straight length of chain.

Table 1

L-180

Stock No.

Wire Rope

Diameter

(in)

Nominal Chain

Size

(in) (mm)

1091482 1/2 - 5/8 5/8 16

1091511 3/4 - 7/8 7/8 22

1091516 1-1-1/8 1 26

1091525 1-1-1/8 1 26

1091532 1-1/4 1-1/4 32

Wire Rope

Diameter

(in)

L-180

Stock No.

Working Load Limit

3.5 to 1

Design Factor

(lb)

1/2 - 5/8 1091482 13000

3/4 - 7/8 1091511 34200

1 - 1-1/8 1091516 47700

1 - 1-1/8 1091525 47700

1-1/4 1091532 73200

5/16 thru 5/8 made from Grade 40 High Test carbon steel.

3/4 thru 1-1/4 made from Grade 80 or Grade 100 alloy steel. Only alloy tail

chain should be used for overhead lifting applications.

• Wire rope termination efficiency and tail chain Working

Load Limit (WLL) must be considered when selecting

termination fitting and tail chain.

• Efficiency of wire rope end termination is based on the

catalog breaking strength of wire rope.

Crosby L-180 User manual

Crosby L-180 User manual

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